What are the different kinds of rocks?
There are three types of rocks: igneous, metamorphic, and sedimentary rocks. Igneous rocks are formed from cooled magma or lava, such as basalt and granite. Metamorphic rocks are formed from the transformation of other rocks under high pressure and heat , and sedimentary rocks are formed from the accumulation of sediments and the cementation of minerals between them, such as sandstone and limestone.